family has ear pain, coughs, sore throat, fatigue for a year

My children and I are having same symptoms for over a year need help! External ear pain, dry coughs, sore throats, and fatigue. Recently the symptoms have got worse. I have swelling and abscesses popping up on my neck and under my chin. The kids have had rashes. We have all had hair changes to coarse and dry. I have night tremors, palpatations, and tongue swelling. My daughter and I both have still feet and legs in the morning. I have muscles spasms and tremors at night. We have all had headaches. Strep tests neg. I was tested for lyme, negative. CBC normal chest xray mri hiv ct abdomen all neg. Ana thyroid normal. My daughter and my nasal swabs are normal. Was incidentally put on keflex for uti, and all of my symptoms nearly disappeared opposed to all 12 others I have been on in 18 months. Even my hair came back to life. Until i stopped the keflex and two days later all syptoms began to return. Please help I am scared for myself and my children. Thank you.